# Flux 3 Keyframes To Video Draft API

> مخصوص فریم پوزیشنز پر منسلک زیادہ سے زیادہ دس کی فریم تصاویر کے گرد بنائی گئی ڈرافٹ ویڈیو

ایک `prompt` اور 1 سے 10 `keyframes` فراہم کریں، ہر ایک کی منفرد `frame_index` ہو۔ 5 سے 20 سیکنڈ کا واضح `duration` ضروری ہے تاکہ کی فریم پوزیشنز کی تصدیق کی جا سکے۔ `aspect_ratio` خودکار (auto) ہو سکتا ہے یا 21:9 سے 9:16 تک ہو سکتا ہے، اور `generate_audio` آواز کو آن یا آف کرتا ہے۔ آؤٹ پٹ میں مکمل کوالٹی رینڈر کے لیے ایک `draft_cache` شامل ہے۔

- Model id: `blackforestlabs/flux-3/keyframes-to-video/draft`
- Made by: Black Forest Labs
- Category: Image to Video
- Output: video
- Price: $0.06 / second (5 s ≈ $0.30) (cheapest run $0.30 (300 API credits))
- Run: `POST https://api.doitong.com/v1/run/blackforestlabs/flux-3/keyframes-to-video/draft`
- Quote: `POST https://api.doitong.com/v1/quote/blackforestlabs/flux-3/keyframes-to-video/draft`
- Docs page: https://doitong.com/ur/developers/models/blackforestlabs/flux-3/keyframes-to-video/draft

## Pricing

Price: **$0.06 / second (5 s ≈ $0.30)**. Billed per second of output (`duration`, default 20).

The full example input below costs $0.30 = 300 API credits (5 s × 60 API credits).

Prices are the upstream price in USD, paid from the API balance in API credits (1000 API credits = 1 USD). `POST https://api.doitong.com/v1/quote/blackforestlabs/flux-3/keyframes-to-video/draft` with the same JSON body returns the exact price for that input; the quote is exactly what a run charges. Invalid input is never charged and failed or canceled requests are refunded automatically.

## Input parameters

| Parameter | Canonical name | Type | Required | Default | Allowed values / range | Description |
|---|---|---|---|---|---|---|
| `prompt` |  | string | yes |  |  | ڈرافٹ ویڈیو کی متنی وضاحت۔ |
| `aspect_ratio` |  | enum (string) | no | `auto` | `auto`, `21:9`, `2:1`, `16:9`, `4:3`, `1:1`, `3:4`, `9:16` | ڈرافٹ آؤٹ پٹ کا پہلو تناسب؛ `auto` انتخاب ماڈل کے سپرد کرتا ہے۔ |
| `duration` |  | enum (integer) | no | `5` | `5`, `6`, `7`, `8`, `9`, `10`, `11`, `12`, `13`, `14`, `15`, `16`, `17`, `18`, `19`, `20` | کی فریم پوزیشنز کی توثیق کے لیے استعمال ہونے والی ڈرافٹ کی لمبائی؛ 5 اور 20 کے درمیان واضح پورے سیکنڈ کی ویلیو درکار ہے۔ |
| `generate_audio` |  | boolean | no | `true` |  | ڈرافٹ ویڈیو کے لیے آڈیو کی تخلیق کو کنٹرول کرتا ہے۔ |
| `safety_tolerance` |  | integer | no | `2` | 0 – 4 | ویڈیو سیفٹی ٹالرنس کا اسکیل؛ سب سے زیادہ اجازت دینے والی سیٹنگ 4 اور سب سے سخت 0 ہے۔ |
| `keyframes` |  | array of object {image_url, frame_index} | yes |  | 1 – 10 items | زیادہ سے زیادہ 10 تصاویر کا مجموعہ، ہر ایک کو تیار کردہ ڈرافٹ میں اپنی جگہ طے کرنے کے لیے مختلف `frame_index` دیا گیا ہے۔ |
| `keyframes[].image_url` |  | string (image URL) | yes |  |  | کی فریم تصویر کا URL؛ PNG، JPEG، یا WebP قبول کرتا ہے۔ |
| `keyframes[].frame_index` |  | integer | yes |  | ≥ 0 | کی فریم کی جگہ کے لیے ہر کی فریم کا الگ فریم انڈیکس استعمال ہوتا ہے، جس کی بالائی حد `duration * 24` ہے؛ آؤٹ پٹ 24 fps پر چلتا ہے۔ |

## Example input

Required parameters only:

```json
{
  "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
  "keyframes": [
    {
      "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
      "frame_index": 0
    }
  ]
}
```

A fuller example:

```json
{
  "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
  "keyframes": [
    {
      "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
      "frame_index": 0
    }
  ]
}
```

## Run it

Set `DOITONG_API_KEY` to a key from https://doitong.com/developers/dashboard#keys. `?wait=20` returns the finished request in the same call when it is ready within 20 seconds; otherwise poll `GET /requests/{id}` (it also accepts `?wait=`), or pass `webhook_url`.

### curl

```bash
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/blackforestlabs/flux-3/keyframes-to-video/draft?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "keyframes": [
      {
        "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
        "frame_index": 0
      }
    ]
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.com/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"
```

### JavaScript

```javascript
const API = "https://api.doitong.com/v1";
const headers = {
  "Authorization": "Bearer " + process.env.DOITONG_API_KEY,
  "Content-Type": "application/json",
};

// Run the model; wait up to 20 s for the finished result in the same call
let res = await fetch(API + "/run/blackforestlabs/flux-3/keyframes-to-video/draft?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "keyframes": [
      {
        "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
        "frame_index": 0
      }
    ]
  }),
});
let request = await res.json();
if (!res.ok) throw new Error(request.error.code + ": " + request.error.message);

// Not finished yet: long-poll until it is
while (request.status === "queued" || request.status === "running") {
  res = await fetch(API + "/requests/" + request.id + "?wait=20", { headers });
  request = await res.json();
}
if (request.status !== "succeeded") throw new Error(JSON.stringify(request.error));
console.log(request.outputs.map((o) => o.url), request.cost.credits + " API credits ($" + request.cost.usd + ")");
```

### Python

```python
import os
import requests

API = "https://api.doitong.com/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}

payload = {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "keyframes": [
        {
            "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
            "frame_index": 0,
        },
    ],
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/blackforestlabs/flux-3/keyframes-to-video/draft", params={"wait": 20}, json=payload, headers=headers)
request = r.json()
if not r.ok:
    raise RuntimeError(request["error"]["code"] + ": " + request["error"]["message"])

# Not finished yet: long-poll until it is
while request["status"] in ("queued", "running"):
    request = requests.get(API + "/requests/" + request["id"], params={"wait": 20}, headers=headers).json()
if request["status"] != "succeeded":
    raise RuntimeError(request["error"])
print([o["url"] for o in request["outputs"]], request["cost"]["credits"], "API credits", "$" + request["cost"]["usd"])
```

### MCP

The MCP server at `https://api.doitong.com/v1/mcp` exposes the tools `search_models`, `get_model`, `quote`, `run`, `get_request`, `cancel_request`, `list_requests`, `create_upload` and `get_account`. A `run` call for this model:

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "run",
    "arguments": {
      "model_id": "blackforestlabs/flux-3/keyframes-to-video/draft",
      "input": {
        "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
        "keyframes": [
          {
            "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
            "frame_index": 0
          }
        ]
      },
      "wait_seconds": 20
    }
  }
}
```

## Response

Every call returns a request object. `status` is one of `queued`, `running`, `succeeded`, `failed`, `canceled`. `outputs` lists the generated files with URLs on our storage (kept forever, or 7 days with `?storage=temporary`; `storage` says which); `output` is the model's own result object with the same URLs.

```json
{
  "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
  "object": "request",
  "model": "blackforestlabs/flux-3/keyframes-to-video/draft",
  "status": "succeeded",
  "created_at": "2026-10-20T12:00:00Z",
  "started_at": "2026-10-20T12:00:02Z",
  "completed_at": "2026-10-20T12:00:09Z",
  "queue_position": null,
  "cost": {
    "credits": 300,
    "usd": "0.30",
    "charged": 300,
    "refunded": 0
  },
  "input": {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "keyframes": [
      {
        "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
        "frame_index": 0
      }
    ]
  },
  "output": {
    "video": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_name": "0-output.mp4",
      "file_size": 1843200
    },
    "draft_cache": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_name": "0-output.mp4",
      "file_size": 1843200
    }
  },
  "outputs": [
    {
      "type": "video",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_size": 1843200,
      "width": 1280,
      "height": 720,
      "duration": 5,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
```

### Output fields (`output`)

| Field | Type | Description |
|---|---|---|
| `video` | object {url, content_type, file_name, file_size} | ڈرافٹ کے طور پر تیار کردہ ویڈیو۔ |
| `draft_cache` | object {url, content_type, file_name, file_size} \| null | `draft-enhance` کے ذریعے مکمل معیار میں ڈرافٹ رینڈر کرنے کے لیے کیش ڈیٹا، پائیدار انکرپٹڈ بنڈل میں محفوظ۔ اگر پارٹنر نے ڈرافٹ کے لیے کوئی بنڈل واپس نہ کیا ہو تو یہ آؤٹ پٹ موجود نہیں ہوتا۔ |

## Related models

- [Flux 3 Text To Video Draft](https://doitong.com/developers/models/blackforestlabs/flux-3/text-to-video/draft.md) (`blackforestlabs/flux-3/text-to-video/draft`): $0.06 / second
- [Flux 3 First Last Frame to Video Draft](https://doitong.com/developers/models/blackforestlabs/flux-3/first-last-frame-to-video/draft.md) (`blackforestlabs/flux-3/first-last-frame-to-video/draft`): $0.06 / second
- [Flux 3 Image To Video Draft](https://doitong.com/developers/models/blackforestlabs/flux-3/image-to-video/draft.md) (`blackforestlabs/flux-3/image-to-video/draft`): $0.06 / second
- [Flux 3 Draft Enhance](https://doitong.com/developers/models/blackforestlabs/flux-3/draft-enhance.md) (`blackforestlabs/flux-3/draft-enhance`): $3.48 / run
- [Flux 3 Extend Video Draft](https://doitong.com/developers/models/blackforestlabs/flux-3/extend-video/draft.md) (`blackforestlabs/flux-3/extend-video/draft`): $0.12 / second
- [FLUX 3 Max Image to Video](https://doitong.com/developers/models/blackforestlabs/flux-3-max/image-to-video.md) (`blackforestlabs/flux-3-max/image-to-video`): from $0.0425 / second of output video
- [Grok Imagine Video 1.5 Image to Video](https://doitong.com/developers/models/xai/grok-imagine-video/v1.5/image-to-video.md) (`xai/grok-imagine-video/v1.5/image-to-video`): from $0.082 / second
- [Kling 3.0 Pro Image to Video](https://doitong.com/developers/models/kling-video/v3/pro/image-to-video.md) (`kling-video/v3/pro/image-to-video`): from $0.112 / second

## Links

- HTML page: https://doitong.com/developers/models/blackforestlabs/flux-3/keyframes-to-video/draft
- All models and guides for AI agents: https://doitong.com/developers/llms.txt
- OpenAPI 3.1 with this model's typed request body: https://doitong.com/developers/openapi.json?model=blackforestlabs/flux-3/keyframes-to-video/draft
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.com/v1/models/blackforestlabs/flux-3/keyframes-to-video/draft